3. When creating a text block description in the Mega Menu, I need to add some text with a carriage return after each line . Is there any way to do this? (ie. I am adding contact details and the phone and fax numbers need to be in separate lines)

3. How to remove Search and RSS on top right and replace the whole area with one big banner ad? And what about size restrictions? Or one one complete image that includes Logo?

4. How to add a left sidebar menu that mimicks the main menu when on the sub page?

Thanks for the help and again if these questions are answered elsewhere, please direct me to them.